Anions in potable waters
Basson and Van Staden  have described a single point titration system for the determination of total alkalinity in potable and domestic waters, based on flow injection analysis. Water samples are injected automatically into the flow system using a flow injection sampling unit. A sampling cycle of 30s allows 120 samples per h to be analysed. The sample is reacted with an acid linear response buffer solution and the pH of the resulting solution is measured with a glass electrode in a flow through assembly.